Improvement in molds for compressing the heels of boots and shoes



H. H. BIfi-ELUW.

Molds for Compressing the Heels of Boot s and Shoes.

No.153,305, PatentedJuly 21,1874.

A I w Wvrnzssza THE BRAFNIC co. PH nm-u'rnass 4! PARK P'i'AcLNx UNITEDSTATES PATENT Grrroa.

HORACE H. BIGELOlV, OF YVORCESTER, MASSACHUSETTS.

IMPROVEMENT IN MOLDS FOR COMPRESSING THE HEELS OF BOOTS AND SHOES.

Specification forming part of Letters Patent No. 153.305, da ed July 21,1 74; application filed 7 July 2, ism.

To all whom it may concern:

Be it known that I, HORACE H. BreELow, of the city and county ofWorcester and Commonwealth of Massachusetts, have invented certain newand useful Improvement in Molds for Compressing Blank Heels for Bootsand Shoes; and I do hereby declare the following to be a full, clear,and exact description of the same, reference being had to theaccompanying drawings forming a part of this specification, and in whichFigure 1 represents a top view of the mold. Fig. 2 represents a bottomor under-side view. Fig. 3 represents a side view. Fig. 4 represents avertical central section on line A B, Fig. 1. Fig. 5 represents avertical central section of the follower used, in combination with themold in compressing the heel-blank. Fig. 6 represents a vertical centralsection cut from the back of the heel through to the breast of a heelformed by said mold, and Fig. 7 represents a back view of a heel.

To enable those skilled in the art to which my invention belongs to makeand use the same, I will proceed to describe it more in detail.

The mold and follower in their general construction are similar in.form, and are used in combination with the compressing-machine, so faras the movable parts thereof are concerned, for compressing blank heelsand insertin g nails therein with their heads left projecting, as thecorresponding parts are used in the machine for compressing blank bootand shoe heels, for which Letters Patent were granted to me July 5, 1870 5 and, therefore, no particular description of such parts isnecessary.

The nature of my present invention consists in the combination, with themold and follower, of a perpendicular edge upon the inside of the mold,of about one-eighth of an inch in depth, for encircling the heel-seatedge of the blank heel at the time of its final compression.

In the drawings, A represents the main body of the mold, having aconcavity, B, in which the blank heel is compressed when the mold ispressed down upon the follower O. a is a perpendicular edge, formed orcut entirely around the mold, upon the inner surface of the mold. Thesides of the mold b and 0, upon each side of said perpendicular part,are made flaring or taper shape, as shown in Fig. 4. D is a movableplate, attached to the stem (7, which is also movable, and which hasalso within it a movable'pin, d, the object of these parts being toloosen 0r detach the blank heel from the sides of the mold and face ofplate D after it has been compressed.

The blank heel being placed upon the top D of the follower 0, it israised up into the flaring mouth of the mold A, as fully described in mypatent of July 5,1870. The mold is then depressed or forced down overthe follower 0 until the top D of the follower reaches the perpendicularpart a of the mold, and in making the mold the proper height of the heeland the degree of compression desired are taken into account, and thedistance of the perpendicular part a is so arranged that it willencircle about one-eighth of an inch in width of the outer surface ofthe heelseat edge at the time of the final completion of the compressionof the heel. 7

By making the mold with the perpendicular edge a a wire or rough edge isprevented from forming upon the outer upper surface of the heel-seatpart of the blank heel. Still another advantage resulting from the useof a mold thus constructed is, the formation of a smooth and even outersurface of that part of the heel Which comes next to the upper and stillanother advantage that may be mentioned as resulting directly from theuse of a mold having a perpendicular surface, a, at the point designatedupon its inner surface is, the prevention of the heel-seat edge beingdrawn down upon the sides while the final compression of the heel isbeing given. Particularly is this the case when a rand, f, is tackedupon a heel before it is compressed.

In using molds previous to my present invention there was greatliability of the sides and back of the face of the follower strikingagainst the inclined surface of the sides and back of the mold, therebygreatly injuring both the follower and mold; but by having theperpendicular surface (0 upon the sides and back of the mold at thepoint designated these difficulties are obviated.

Those skilled in the art to which my invention belongs will readilyappreciate the practical advantages which naturally result from the useof my said invention, since they will perceive that after the blank heelhas been attached to the boot or shoe the outer surface of that part ofthe heel which comes next to the upper, and which is formed by theperpendicular part a of the mold, will have an even, true, andhighly-finished appearance, while if it be desired to have the edge orcorner 1 of the heel removed, it can be easily and quickly effected bythe operator with a suitable tool, which will enable him to out orremove said edge from the heel. It will also be observed that the breastg of the mold is perpendicular, whereby the breast 2 of the blank heelis formed true and perpendicular also, thereby obviating much, if any,breasting of the heel during the process of finishing the boot or shoe.

It will be understood that the top of the mold is provided with holes,and plate D with corresponding holes, whereby the blank heel can bepricked or punched and the nails inserted and partially driven,'the sameas the said operation is fully described in the Letters Patent grantedto me July 5, 187 0; and, therefore, no further description of saidparts is necessary in this connection.

Having described my improvements in molds for compressing blank heelsfor boots and shoes, what I claim therein as new and of my invention,and desire to secure by Letters Patent, 1s

A mold for compressing blank heels for boots and shoes, having aperpendicular surface or edge, a, for encircling a portion of the outersurface of the heel-seat edge, substantially as and for the purposes setforth.

HORACE H. BIGELOVV.

Witnesses:

Tnos. H. DODGE, EDWIN E. MOORE.

